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JulsSmile [24]
3 years ago
14

A person wishes to mix coffee worth ​$9 per lb with coffee worth ​$3 per lb

Mathematics
1 answer:
Sedaia [141]3 years ago
7 0
To answer the question, let x be the number of pounds of coffee worth $9. Having said that, the number of pounds of coffee worth $3 is 120 - x. The equation relating the items before and after mixing is,
                      (x)($9) + (120 - x)($3) = (120)($5)
The value of x is 40. Therefore, the amount of coffee worth $9 and $3 to be used are 40 and 80 pounds, respectively.
You might be interested in
What is 4 5/6 multiplied by 3 as a mixed number or fraction
KIM [24]

Answer:

14 1/2

Step-by-step explanation:

4 5/6 * 3 = 14 1/2


mark brainliest  :)

6 0
4 years ago
A privately owned lake contains two types of game fish, bass and trout. The owner provides two types of food, A and B, for these
Vinvika [58]

Answer:

133 fishes

Step-by-step explanation:

Units of food A = 400 units

Units of food B = 400 units

Fish Bass required 2 units of A and 4 units of B.

Fish Trout requires 5 units of A and 2 units of B.

i. For food A,

total units of food A required = 2 + 5

                                                 = 7 units

number of bass and trout that would consume food A = 2 x \frac{400}{7}

                                               = 114.3

number of bass and trout that would consume food A = 114

ii. For food B,

total units of food B required = 4 + 2

                                                = 6 units

number of bass and trout that would consume food B = 2 x \frac{400}{6}

                                                 = 133.3

number of bass and trout that would consume food B = 133

Thus, the maximum number of fish that the lake can support is 133.

4 0
3 years ago
Please help I will mark brainliest! For correct answers ​
Ivan

Answer:

it should be a,c,e,d

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
3 + 4n + n = 2n + 15
Reika [66]

Answer:

the answer is n=4

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Do you know what the answer is to this question
RUDIKE [14]
Use subsiution]
y=-3x+5
subsitute -3x+5 for y in second equation
5x-4(-3x+5)=-3
distribute
5x+12x-20=-3
add like terms
17x-20=-3
add 20 to both sides
17x=17
divide both sides by 17
x=1
now subsitute 1 for x
y=-3x+5
y=-3(1)+5
y=-3+5
y=2


x=1
y=2
4 0
3 years ago
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